Cheapest return flights from Cincinnati to San Juan in December from $138

AirHint found the following cheapest return flights from Cincinnati (CVG) to San Juan (SJU) in December 2025 (see full year).

Return flights

07 Dec - 13 Dec Frontier Airlines
04 Dec - 11 Dec Frontier Airlines
15 Dec - 19 Dec Frontier Airlines
15 Dec - 20 Dec Frontier Airlines
14 Dec - 19 Dec Frontier Airlines
13 Dec - 17 Dec American Airlines
03 Dec - 11 Dec Frontier Airlines
29 Dec - 06 Jan Frontier Airlines
17 Dec - 23 Dec Allegiant Air
05 Dec - 10 Dec Southwest Airlines
22 Dec - 06 Jan Frontier Airlines
27 Dec - 30 Dec Frontier Airlines
28 Dec - 05 Jan Frontier Airlines
25 Dec - 01 Jan Frontier Airlines
26 Dec - 01 Jan Frontier Airlines
20 Dec - 01 Jan Frontier Airlines
27 Dec - 03 Jan Frontier Airlines
25 Dec - 02 Jan Frontier Airlines
19 Dec - 03 Jan Frontier Airlines
25 Dec - 03 Jan Frontier Airlines

Also check the deals for one-way flights from Cincinnati to San Juan in December.

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